Y/C/Audio/Ccd/Head Amp; Hi-Fi/Demodulator - Memorex MVR4042 Service Manual

CP4001
1 EP/LP-CH2 (L)
EP/LP_COM
2
EP/LP-CH1 (R)
3
SP-CH2 (L)
4
5 SP_COM
CYL
6 SP-CH1 (R)
HF2 (L)
7
8 HF_COM
HF1 (R)
9
HF1
HI-FI/DEMODU
HF_COM
LATOR
HF2
CP4003
2 FE HEAD (HOT)
FE HEAD
1 FE HEAD (GND)
CP4002
5 AUDIO PB
6 AUDIO REC
HEAD
4 CTL+
AUDIO
3 CTL-
CONTROL
1
AE HEAD(-)
2 AE HEAD(+)
E-1
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
X4001
3.579545 MHz
Q4012
BUFFER
Y/C/AUDIO/CCD/HEAD AMP IC
IC4001
LA71206M-MPB
50 49
PULL
VX01
TIMMING
L
67
H.SW
REC
H
FM-EQ
66
AGC KIL
AMP
C-LPF
H
P R
65
H.AMP
SW GCA
72
L
R
P
FM
AGC
73
DELAY
H
PB
H.SW
74
L FM-EQ
PB DOUBLE
PHASE-EQ
LIM
9
REC AMP
7
8
AUTO BIAS
EQ
6
AMP
PB.EE
11 5 4 3
COIL, BIAS OSC
T4001
Q4005
BIAS CTL
5 2
6 3
Q4006
BIAS OSC
P. CON + 5V
4 1
Q4003
Q4001, Q4002
SW
AUDIO PB SW
Q4010
BUFFER
39
41
43 37
OUT
DRIVER CCD CLAMP
WC NL DETAL
FM
ENH
DC EMPHA
MOD
V/I
CONV
P
Y-LPF
R
Main 3.58M
B-UP
BPF2
AMP CONV
P
ACC
3.58M
AMP
BPF1
R
KIL PB
B.D. AMP
FM SUB
DEM
LPF
LINE
AMP V-AGC
LPF
P R
P
ALC
ALC
DET
MUTE
SYNC
SEP
2 10 80 78 76 32 30 25
55
SERIAL
54
53
DECODER
CLAMP 22
P
21
R
YNR/ VCA 36
COMB
CLAMP 34
N.L.
DEEM
H.AMP SW/
NC1
58
AUDIO
MUTE
Y/C MIX
1/2
C ROT
57
RF SW IN
P
FBC
R
ENV DET 59
Chara
60
INS. COMP
R
OUT
24
6dB
26
4FSC
Y/C_CS
SYSCON/SERVO
Y/C_DATA
Y/C_CLK
H. AMP_SW
C. ROTARY
H. SW
AUDIO_MUTE-H
SYSCON/SERVO
ENV. DET
COMP
DUMMY_V. SYNC
OSD_V
C.SYNC
TUNER
FRONT_V_IN
TUNER_V
TO_NORMAL_A
HI-FI/DEMODU
FROM_NORMAL_A
LATOR
FSC
V.REC_ST-H
CTL+
SYSCON/SERVO
CTL-
E-2